Home / 18,533.57-25,574.56-10,979.91

Finding the Fourth Proportional to 18,533.57, 25,574.56 and 10,979.91

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Solution

The fourth proportional to 18,533.57, 25,574.56 and 10,979.91 is: 15,151.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,533.57 : 25,574.56 = 10,979.91 : x
  2. Step 2: Convert to fraction form
    18,533.57/25,574.56 = 10,979.91/x
  3. Step 3: Cross multiply
    18,533.57x = 25,574.56 × 10,979.91
  4. Step 4: Simplify right side
    18,533.57x = 280,806,339.64
  5. Step 5: Solve for x
    x = 280,806,339.64/18,533.57
  6. Step 6: Final answer
    x = 15,151.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.